柴油发动机是当今已知效率最高的原动机。

Small actions, multiplied by millions, can transform the world.

我不是榜样，我是那些不相信榜样的人的榜样。

婴儿不是需要修理的物品，而是需要理解的人。

地理学是关于地方的科学，而不是关于人的科学。

合规不是负担，而是我们的经营许可证。

The best films are those that stay with you long after you've left the theater.

I think that in mathematics, and maybe in life, you have to be willing to be a little bit lost.